WORLD OF CELL+MASTERING ACCESS >CUSTOM
9th Edition
ISBN: 9781323445044
Author: Hardin
Publisher: PEARSON C
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 15, Problem 15.6PS
Junction Proteins. Indicate whether each of the following is a component of adherens junctions (A), desmosomes (D), tight junctions (T), gap junctions (G), or plasmodesmata (P), and describe briefly the role each plays.
(a) Connexin
(b) E-cadherin
(c) Desmocollin
(d) Desmotubule
(e) Desmoplakin
(f) Annulus
(g) α-Catenin
(h) Claudin
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
How much? How might one even define a cell as different if cells look the same morphologically?
Actin filaments, microtubules, and bacterial flagella are all built from small subunits. Describe three advantages of assembling long filamentous structures from subunits rather than from single, long proteins.
The role of GTP hydrolysis in actin polymerization is similar to the role of ATP hydrolysis in tubulin polymerization: both serve to weaken the bonds in the polymer and thereby promote depolymerization. Is that true or false? why?
Chapter 15 Solutions
WORLD OF CELL+MASTERING ACCESS >CUSTOM
Ch. 15 - What are the two main types of cell-cell adhesive...Ch. 15 - Cells behave differently from those shown in...Ch. 15 - Prob. 15.2CCCh. 15 - Prob. 15.3CCCh. 15 - Beyond the Membrane: ECM and Cell Walls. Compare...Ch. 15 - Problem Set Anchoring Cells to the ECM. Animal...Ch. 15 - Prob. 15.3PSCh. 15 - Compaction. In mammalian embryos such as the...Ch. 15 - Cellular Junctions and Plasmodesmata. Indicate...Ch. 15 - Junction Proteins. Indicate whether each of the...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Hydrolysis .? And what is endocytosis pinocytosis phagocytosis explain with reactions or diagram.arrow_forwardstructure of cholesterol, define the three regions of the molecule, know that this molecule regulates membrane fluidity, and distinguish between esterified and unesterifiedcholesterolarrow_forwardKnowing that there is constant turnover of phospholipids in a cell’s membrane and that new phospholipids are regularly synthesized, what strategy could a cell (or organism) use to maintain membrane fluidity and integrity in: A) Cold temperatures? B) Hot temperatures?arrow_forward
- Cell Structure Reflects Function What advantages are there in having the interior of the cell divided into a number of compartments such as the nucleus, the ER, lysosomes, and so forth?arrow_forwardCompare/contrast different types of cell junctions• Are they cell-to-cell or cell-to-extracellular matrix?• What are their general functions?• If they facilitate signaling, how do they do it?• What proteins form junctions? Are they attached to cytoskeletal proteins? If so, which?• How stable are they relative to one another?• What happens if these proteins don’t function properly (i.e., if cell junctions break down)?arrow_forwardQuestion:- Distinguish between two possible import mechanisms: biased diffusion and force‐generating motors.arrow_forward
- Question:- where do each of thse go? which boxarrow_forwardQuestion- For each characteristic choose the cytoskeleton components to which it applies. either a. intermediate filament b. microtubles c. actin select all that apply 1. found in cell cortex 2. contain coiled coils 3. binds atp 4. provides high tensile strength 5. functions in mitosis 6. assiciated with tubulin 7. roplike 8. treadmilling growth 9. binds gtp 10. stablized by capping proteins 11. associated w/severing proteins 12. found in cilia 13. highly stable 14. comprised of photofilaments 15. has a posivite and negative end 16. functions in cell to cell junctions 17. dynamic instability 18. assoicated with centrosomes 19. found in microvilli 20. associated with chromatinarrow_forward1. Channel proteins used for the bulk passage of water molecules across the cell membrane?2. The tonicity of the extracellular fluid that maintains the turgid appearance of plant cells?3. The tonicity of the extracellular environment causing plasmolysis of plant cells?4. Plant cells are said to be flaccid in this type of cellular environment or solution?arrow_forward
- Chemistry Calculate the fractional saturation of myoglobin at 30 torr (p50=2.8 torr). An allosteric protein has a hill coefficient of 0.4. Which model of Allosterism fails to explain the cooperativity exhibited by this protein? Explain why?arrow_forward1. When considering tight junctions, adherens junctions, and desmosomes: a. Which ones do not help in resisting mechanical stress and holding cell shape? Why not? b. Considering how the mechanical junctions are placed in the plasma membrane, why don’t they provide a truly sealed barrier?arrow_forward1. Researchers have discovered a new membrane protein that has three transmembrane domain αhelixes that span the lipid bilayer. a. If the lipid bilayer is 30 Å thick, what is the smallest number of amino acid residues that can be in each α-helixes for them to be long enough to span the bilayer? b. If one of the three α-helixes is titled at a 32° angle relative to an axis perpendicular to the surface of the lipid bilayer, what is the smaller number of amino acid helixes required for that helix to still span the lipid bilayer? c. How many hydrogen bonding interactions would there be in the smallest possible tilted transmembrane α-helix? d. If the tilted α-helix was a 310 helix instead how many amino acid residues would be required to span the lipid bilayer? How many amino acid residues would be required if it was a π-helix?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Biomolecules - Protein - Amino acids; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=ySNVPDHJ0ek;License: Standard YouTube License, CC-BY